Ionia Weather Forecast

    • 22
    • 35

    Mostly Cloudy

    • 14
    • 32

    Snow Likely

    • 7
    • 20

    Mostly Cloudy

    • 28
    • 32

    Rain/Snow Likely

    • 25
    • 38

    Rain

    • 18
    • 29

    Chance Snow Showers

Today 6 Dec Ontario

Mostly cloudy. Highs Ranging from the lower 30s on the Hilltops to the mid 30s across the lower Elevations. South Winds 5 to 10 Mph, becoming southwest.

Tonight 6 Dec Ontario

Mostly cloudy. Lows in the lower 20s. West Winds 5 to 10 Mph, becoming light.

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Ionia Temperature Statistics

December Temperature

Rochester, Greater Rochester International Airport (15.5 miles)

  • Lowest 3 December, 2025

    18 °F

  • Average December

    27.2 °F

  • Highest 3 December, 2025

    34 °F

Climate (2020–Present)

Rochester, Greater Rochester International Airport (15.5 miles)

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  • Average Low 2020–2025

    42.5 °F

  • Average 2020–2025

    50.9 °F

  • Average High 2020–2025

    59.6 °F
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